Model comparison

Grok 4.6 vs Llama 3-8B

Grok 4.6 is the stronger model overall, scoring 56.8 to 25.3 on the Noometry Index. Llama 3-8B costs 21× less per token, which makes it the better buy when Grok 4.6's lead doesn't matter for your workload.

Last verified . 22 shared benchmarks.

Grok 4.6 xAI

56.8

Rank #19 Confirmed

Llama 3-8B Meta

25.3

Rank #338 Confirmed

Summary

  • They share 22 benchmarks with published results for both. Grok 4.6 scores higher in 8 categories and Llama 3-8B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where Grok 4.6 leads 66.8 to 8.3.
  • The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 99.2% for Grok 4.6 and 1.9% for Llama 3-8B.
  • Llama 3-8B is cheaper at $0.14 / $0.14 per million input/output tokens, against $2 / $6 for Grok 4.6.
  • Grok 4.6 accepts more context: 500K tokens versus 8K.
  • Llama 3-8B has downloadable open weights; the other is API-only.

Side by side

Grok 4.6 and Llama 3-8B specifications
Grok 4.6Llama 3-8B
ProviderxAIMeta
Noometry Index56.825.3
Released2026-08-122024-04-18
WeightsProprietaryOpen
Context window500K8K
Max output500K8K
Input $ / M tokens$2$0.14
Output $ / M tokens$6$0.14
Results tracked4934

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Category by category

Coding Grok 4.6 leads

Grok 4.6: 58.0 (#14), Llama 3-8B: 30.5 (#285)

Coding benchmarks
BenchmarkGrok 4.6Llama 3-8B
LMArena Coding14641152
DeepSWE67.5%—
FrontierCode48%—
CursorBench41.4%—
LMArena WebDev1620—
FrontierSWE25.3%—
SciCode56.5%—
WeirdML67.3%—
BigCodeBench Instruct—31.9%
BigCodeBench Complete—36.9%
ALE-Bench1,508—
HumanEval+—56.7%
MBPP+—54.8%

Agentic & Tool Use Not comparable

Grok 4.6: 39.4 (#25), Llama 3-8B: —

Agentic & Tool Use benchmarks
BenchmarkGrok 4.6Llama 3-8B
APEX-Agents65.3%—
GDP.pdf17.2%—
Vending-Bench 29,047—

Reasoning Grok 4.6 leads

Grok 4.6: 61.3 (#18), Llama 3-8B: 13.8 (#321)

Reasoning benchmarks
BenchmarkGrok 4.6Llama 3-8B
Chess Puzzles40%0%
LMArena Hard Prompts14451133
DTBench97.3%43.9%
Epoch Capabilities Index156.48116.33
ARC-AGI-267.1%—
SimpleBench75.9%—
NYT Connections (extended)80%—
ARC-AGI-187.5%—
CritPt19.7%—
EBR-Bench30.5%—
Mystery Game Puzzles34%—
LMCA48.5%—
Adversarial NLI—57.3%
ForecastBench—58.6
WinoGrande—75.7%

Math Grok 4.6 leads

Grok 4.6: 66.8 (#19), Llama 3-8B: 8.3 (#317)

Math benchmarks
BenchmarkGrok 4.6Llama 3-8B
OTIS Mock AIME 2024-202599.2%1.9%
LMArena Math14161151
FrontierMath (Tiers 1-3)66%—
FrontierMath Tier 431.7%—
ProofBench51%—
MATH Level 5—6.1%

Knowledge Grok 4.6 leads

Grok 4.6: 63.3 (#18), Llama 3-8B: 7.8 (#303)

Knowledge benchmarks
BenchmarkGrok 4.6Llama 3-8B
GPQA Diamond94%26.1%
LMArena Expert14631113
SimpleQA Verified49.3%—
ARC (AI2) Challenge—82.8%
MMLU—68.8%
OpenBookQA—82.6%
TriviaQA—67.7%

Multimodal Not comparable

Grok 4.6: 43.9 (#18), Llama 3-8B: —

Multimodal benchmarks
BenchmarkGrok 4.6Llama 3-8B
LMArena Vision1265—
Blueprint-Bench 233.2%—
Furniture Assembly40%—
LMArena Document1452—

Multilingual Grok 4.6 leads

Grok 4.6: 53.3 (#67), Llama 3-8B: 31.0 (#256)

Multilingual benchmarks
BenchmarkGrok 4.6Llama 3-8B
LMArena Non-English14221098
LMArena Chinese14791076
LMArena French14581158
LMArena German14251104
LMArena Japanese1383967
LMArena Korean13951003
LMArena Russian14271109
LMArena Spanish14081172

Instruction Following Grok 4.6 leads

Grok 4.6: 75.6 (#59), Llama 3-8B: 58.7 (#255)

Instruction Following benchmarks
BenchmarkGrok 4.6Llama 3-8B
LMArena Instruction Following14311127

Long Context Grok 4.6 leads

Grok 4.6: 44.4 (#62), Llama 3-8B: 34.2 (#246)

Long Context benchmarks
BenchmarkGrok 4.6Llama 3-8B
LMArena Longer Query14531128

Writing & Preference Grok 4.6 leads

Grok 4.6: 62.5 (#77), Llama 3-8B: 37.7 (#251)

Writing & Preference benchmarks
BenchmarkGrok 4.6Llama 3-8B
LMArena Text14271166
LMArena Creative Writing14301150
LMArena Multi-Turn14221152

Frequently asked questions

Is Grok 4.6 better than Llama 3-8B?

Grok 4.6 is the stronger model overall, scoring 56.8 to 25.3 on the Noometry Index. Llama 3-8B costs 21× less per token, which makes it the better buy when Grok 4.6's lead doesn't matter for your workload.

Which is cheaper, Grok 4.6 or Llama 3-8B?

Llama 3-8B is cheaper. It lists at $0.14 per million input tokens and $0.14 per million output tokens; Grok 4.6 lists at $2 and $6.

Is Grok 4.6 or Llama 3-8B better for coding?

Grok 4.6 scores higher on coding benchmarks: 58.0 versus 30.5 in the Noometry coding category.

Which has the bigger context window?

Grok 4.6 does, with 500K tokens against 8K.

How many benchmarks do Grok 4.6 and Llama 3-8B share?

22 benchmarks have published results for both models. Grok 4.6 has 49 scored results on Noometry and Llama 3-8B has 34.

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